#5BD9FD#5BD9FD
#5BD9FD is a very light, vivid cyan. Relative luminance 0.589; OKLCH L 82.9% C 0.121 H 220.0°. Best body text is #000000 at 12.79:1 contrast (WCAG AA passes).
Color values
| HEX | #5BD9FD |
|---|---|
| RGB | rgb(91, 217, 253) |
| HSL | hsl(193, 98%, 67%) |
| HSV | hsv(193, 64%, 99%) |
| CMYK | cmyk(64%, 14.2%, 0%, 0.8%) |
| CIE-LAB | lab(81.26, -24.24, -27.89) |
| CIE-LCH | lch(81.26, 36.96, 229.00°) |
| OKLab | oklab(82.87% -0.0927 -0.0777) |
| OKLCH | oklch(82.87% 0.121 220) |
| XYZ | xyz(46.8497, 58.9367, 101.8163) |
| Luminance | 0.5894 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Neon Blue
#04D9FF
ΔE00 2.87
Bright Sky Blue
#02CCFE
ΔE00 4.82
Sky Blue
#87CEEB
ΔE00 5.30
Baby Blue
#89CFF0
ΔE00 5.72
Ice Blue
#A5DFF9
ΔE00 7.55
Lightskyblue
#87CEFA
ΔE00 7.57
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BD9FD #FD7F5B
analogous
#5BFDD0 #5BD9FD #5B88FD
triadic
#5BD9FD #FD5BD9 #D9FD5B
tetradic
#5BD9FD #D05BFD #FD7F5B #88FD5B
square
#5BD9FD #D05BFD #FD7F5B #88FD5B
split-complementary
#5BD9FD #FD5B88 #FDD05B
monochromatic
#03ABDB #1FCBFC #5BD9FD #97E7FE #D4F5FE
Accessibility & contrast
On white
1.64
#5BD9FD on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
12.79
#5BD9FD on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BD9FD
12.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BD9FD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BD9FD | 1.00 | 1.64 | 12.79 | 12.79 |
| #FFFFFF | 1.64 | 1.00 | 21.00 | 21.00 |
| #000000 | 12.79 | 21.00 | 1.00 | 1.00 |
| ##000000 | 12.79 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#C3D4FF
Deuteranopia (green-blind)
#ACC2FD
Tritanopia (blue-blind)
#00E5E4
Achromatopsia (no color)
#CACACA
Design tokens & code
CSS
--color: #5bd9fd; /* rgb */ color: rgb(91, 217, 253); /* oklch */ color: oklch(82.9% 0.121 220.0);
Tailwind
colors: {
custom: {
50: '#9ae5fe',
500: '#5bd9fd',
950: '#000000',
},
}SCSS
$custom: #5bd9fd; $custom-light: #9ae5fe; $custom-dark: #000000;
JSON
{
"hex": "#5bd9fd",
"rgb": {
"r": 91,
"g": 217,
"b": 253
},
"hsl": {
"h": 193.333,
"s": 97.59,
"l": 67.451
},
"oklch": {
"l": 0.82868,
"c": 0.12094,
"h": 220
},
"luminance": 0.58942
}Semantic roles & 50–950 ramp
primary
#5BD9FD
secondary
#D44E28
accent
#3300E6
background
#FCFEFF
surface
#F6FCFF
border
#D0D5D7
text
#0F1517
muted
#808485